palaima / androidsmoothbluetooth Goto Github PK

Not always do we want to let the device connect to just any device found around.

Most of the applications would need to connect to specific devices around, may it be user's choice or preconfigured to control one specific device.

Hello sir, I am very new to android and I tried using your library. After selecting the desired bluetooth device I am getting the same result "Failed to connect to device". as shown in your documentation, I also tried to connect to an android phone by setting connectionto.Android devices in the constructor, but all in vain. Can you please help?

I solve through this : https://stackoverflow.com/questions/32900524/unable-to-update-gradle-dependency-for-a-library/32900570#32900570

Hi,

i use this library, but i need help with one question. I must connect to device, but i need send paired code.

How i can send paired code in connectionTo(device)?

Error:(223, 21) error: method adapter in class Builder cannot be applied to given types;
required: ListAdapter,ListCallback
found: DevicesAdapter
reason: actual and formal argument lists differ in length

I have 2 paired Android devices, and I have this code:

mSmoothBluetooth = new SmoothBluetooth(this, SmoothBluetooth.ConnectionTo.ANDROID_DEVICE, SmoothBluetooth.Connection.SECURE, mListener);
mSmoothBluetooth.tryConnection();

 private SmoothBluetooth.Listener mListener = new SmoothBluetooth.Listener() {
    @Override
    public void onBluetoothNotSupported() {
      //device does not support bluetooth
    }

    @Override
    public void onBluetoothNotEnabled() {
      //bluetooth is disabled, probably call Intent request to enable bluetooth
    }

    @Override
    public void onConnecting(Device device) {
      //called when connecting to particular device
      Log.w("DEBUG","Connecting to device "+device.getName());
    }

    @Override
    public void onConnected(Device device) {
      //called when connected to particular device
      Log.w("DEBUG","Connected device "+device.getName());
    }

    @Override
    public void onDisconnected() {
      //called when disconnected from device
    }

    @Override
    public void onConnectionFailed(Device device) {
      //called when connection failed to particular device
      Log.w("DEBUG","Connection failed to device "+device.getName());
    }
 @Override
    public void onDiscoveryStarted() {
      //called when discovery is started
    }

    @Override
    public void onDiscoveryFinished() {
      //called when discovery is finished
    }

    @Override
    public void onNoDevicesFound() {
      //called when no devices found
    }

    @Override
    public void onDevicesFound(List list, SmoothBluetooth.ConnectionCallback connectionCallback)
    {
      Log.w("DEBUG","Found devices");
      if(list.size()==1)
      {
        Log.w("DEBUG", "Found 1 device");
        Log.w("DEBUG", "Device is paired: "+list.get(0).isPaired());
        connectionCallback.connectTo(list.get(0));
      }
    }
    @Override
    public void onDataReceived(int data) {
      //receives all bytes
    }
  };

I always get this log:

D/BluetoothManager? Paired devices: 1
W/DEBUG? Found devices
W/DEBUG? Found 1 device
W/DEBUG? Device is paired: true
W/DEBUG? Connecting to device GT-S5830i
D/BluetoothService? setState() 0 -> 1
D/BluetoothService? setState() 1 -> 2
D/BluetoothService? setState() 2 -> 1
W/DEBUG? Connection failed to device GT-S5830i

Why does the connection fail if they are paired already?

Use it in this way might solve the issue.

new MaterialDialog.Builder(this)
.title(R.string.socialNetworks)
// second parameter is an optional layout manager. Must be a LinearLayoutManager or GridLayoutManager.
.adapter(new ButtonItemAdapter(this, R.array.socialNetworks), null)
.show();

I read your source code to understand why it does not connect smoothly and I found that no BluetoothService is avalaible before you call connect(), but for the case of a server you don't have to need to search and try to pair to another device. The client has to connect to the server.
Example : device1 is my server, device2 is my client. Device1 is visible, device2 tries to connect to device1 but it fails. We can repeat this operation several times it will always fail. But if device1 tries to connect to device2 it will work because both have called connect(), so both have already a BluetoothService instance.
My solution is to add these lines

if (!isServiceAvailable()) {
            setupService();
}
startService(mIsAndroid, mIsSecure); 

in the end of the constructor, and it works correctly (I already tested it).

Hope it will help
LAcrym0